An earthworm receives support and shape from its fluid-filled cavity. It has _____. an endoskeleton an exoskeleton a hydroskeleton no skeleton

Answers

Answer 1

Answer: No skeleton, it may look like it but there isn't one. Because when you squish the worm there is nothing but flesh and blood. However there is a certain type of worm that has a skeleton just not an earthworm. (I don't know what the name is of the worm that has a skeleton.)
Hope this helps:)

Answer 2

Answer: a work has no skeleton, which is why it can bend in all different directions, but the main reason i know this, is cause if you pinch a work between your thumb and forefinger, it will break, and there is nothing on the inside of the worm that indicates there is a skeleton

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How do homologous structures provide evidence for evolution?

Answers

The presence of a homologous structure suggests common ancestry, and further suggests that the nearest common ancestor of two organisms had the trait which is homologous. Comparison of several modern organisms with different variations of the same homologous structure can suggest what the original ancestor's actual characteristics were, and comparison of the structure in different organisms can also suggest which organisms are more or less closely related

Meaning of heliocentric model

Answers

Hey There!

The heliocentric model is the astronomic model of the earth.

Have A Brainly Day :)

Heliocentic means the sun is the center of the universe.

The list below includes three organ systems thatare directly used when a human runs.
circulatory system
muscular system
skeletal system
Which system should also be included in the list?
(1) immune system (3) digestive system
(2) reproductive system (4) nervous system

Answers

Answer:

4.) Nervous System

Explanation:

Nervous system helps in nervous coordination and it is the system that provide communication to all the parts of the body through electrical and chemical impulses.The two nervous system are;

1.)Central nervous system(CNS)

2.)peripheral nervous system(PNS).

The central nervous system control all behaviors and its is the largest part of the nervous system, with inclusion of the brain and the spinal cord.

Nervous system have communication with several other body systems

For instance, when we run the nervous system send message directly to other part of our body system such as; The circulatory system,muscular system and the skeletal system about the activities that is about to take place and that the Skeletal muscles need neural inputs to begins it's contraction.

NERVOUS SYSTEM because is the system that send messages to the other systems in body to function well

Explain why it is important
for you to be scientifically
literate

Answers

Answer:

C. Explain to your reader thorougly

Explanation:

scientific litierate

Describe two ways that water moves through the earths biosphere in the water cycle

Answers

For the first one I would say that the water cycle would be affected because there would be more water in the ground. The roots of the trees soak up the water and keep excellent drainage under the ground. Without trees this mechanism would be all sorts of messed up. Another way it could be affected would be the perspiration from the trees. This might change the humidity of the area.

A box with a mass of 7 kilograms is pushed up a ramp to a height of 5 meters. what is the work done against the force of gravity? assume the ramp has negligible friction.